<%@ page language="java" errorPage="/error.jsp" pageEncoding="UTF-8" contentType="text/html;charset=utf-8" %>
<div class="controls">

   <!-- see bookForm.jsp for example -->
</div>
    <div id="toPopup"> 
        <div class="close"></div>
        <span class="ecs_tooltip">Press Esc to close <span class="arrow"></span></span>
        <div id="popup_content"> <!--your content start-->
            <div id="fileTreeDemo_1" class="demo"></div>
        </div> <!--your content end-->
    
    </div> <!--toPopup end-->
    
    <div class="loader"></div>
    <div id="backgroundPopup"></div>